TM 5-3895-371-24 & P
Overhaul. That maintenance effort (services/actions) necessary to restore an item to a com-
j.
pletely serviceable/operational condition, as prescribed by maintenance standards (i.e., DMWR) in
appropriate technical publications. Overhaul is normally the highest degree of maintenance performed by
the Army. Overhaul does not normally return an item to Iike-new condition.
k.
Rebuild. Consists of
those services/actions necessary for the restoration of
unserviceable
equipment to a like-new condition in accordance with original manufacturing standards. Rebuild is the
highest degree of materiel maintenance applied to Army equipment. The rebuild operation includes the
act of returning to zero those age measurements (hours/miles, etc.) considered in classifying Army equip-
ments/components.
B-3. Explanation of Columns in the MAC, Section II.
Column 1, Group Number. Column 1 lists group numbers, the purpose of which is to identify
a.
components, assemblies, subassemblies, and modules with the next higher assembly.
Column 2, Component/Assembly. Column 2 contains the names of components, assemblies,
b.
subassemblies, and modules for which maintenance is authorized.
Column 3, Maintenance Functions. Column 3 lists the functions to be performed on the item
listed in column 2. (For detailed explanation of these functions, see para B-2.)
Column 4, Maintenance Level. Column 4 specifies, by the listing of a "work time" figure in the
d.
appropriate subcolumn (the lowest level of maintenance authorized to perform the function listed in
column 3. This figure represents the active time required to perform the maintenance function at the
indicated level of maintenance. If the number or complexity of the tasks within the listed maintenance
function vary at different maintenance levels, appropriate "work time" figures will be shown for each
level. The number of man hours specified by the "work time" figure represents the average time required
to restore an item (assembly, subassembly, component, module, end item, or system) to a serviceable
condition under typical field operating conditions. This time includes preparation time, troubleshooting
time, and quality assurance/quality control time in addition to the time required to perform the specific
tasks identified for the maintenance functions authorized in the maintenance allocation chart. The symbol
designations for the various maintenance levels are as follows:
Operator or crew
C ....................................
0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Organization maintenance
Direct support maintenance
F ....................................
H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General support maintenance
D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Depot maintenance
Column 5, Tools and Equipment. Column 5 specifies, by code, those common tool sets (not
e.
individual tools) and special tools, TMDE, and support equipment required to perform the designated
function.
f.
Column 6, Remarks. This column will, when applicable, contain a letter code, in alphabetic
order, which will be keyed to the remarks contained in Section IV.
B-2